| 数字预失真系统的接收通道设计 |
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| 引用本文： | 张红南,戚国刚,侯富诚,杨亚光,齐帅,张浩.数字预失真系统的接收通道设计[J].电子元件与材料,2011,30(1):62-65. |
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| 作者姓名： | 张红南 戚国刚 侯富诚 杨亚光 齐帅 张浩 |
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| 作者单位： | 张红南,戚国刚,杨亚光,ZHANG Hongnan,QI Guogang,YANG Yaguang(湖南大学,物理与微电子学院,湖南,长沙,410082);侯富诚,齐帅,张浩,HOU Fucheng,QI Shuai,ZHANG Hao(中国科学院微电子研究所,北京,100029) |
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| 摘 要： | 根据数字预失真系统的要求,合理分配链路增益,考虑噪声和各部分级联影响,采用具有高线性度的无源下变频方案,并具体分析接收通道的整体响应,设计并制作了一个数字预失真功率放大器的接收通道.ADS仿真结果表明,设计的接收通道具有高线性度、小失真特性,输出三阶交调点OIP3的功率达到38.6 dBm.实验表明,该接收通道能很好地...
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| 关 键 词： | 数字预失真 非线性 接收通道 |
Design of receiving channel for digital pre-distortion system |
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| ZHANG Hongnan,QI Guogang,HOU Fucheng,YANG Yaguang,QI Shuai,ZHANG Hao.Design of receiving channel for digital pre-distortion system[J].Electronic Components & Materials,2011,30(1):62-65. |
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| Authors: | ZHANG Hongnan QI Guogang HOU Fucheng YANG Yaguang QI Shuai ZHANG Hao |
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| Affiliation: | 1.College of Physics and Microelectronics,Hunan University,Changsha 410082,China;2.Institute of Microelectronics,Chinese Academy of Science,Beijing 100029,China) |
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| Abstract: | According to the requirements of digital pre-distortion system,having a rational allocation of the link gain,and considering noise and various parts of the cascade effects,with high linearity passive down-conversion frequency program,after specific analysis of the overall response to the receiving channel,the receiving channel was designed and fabricated,which applied to digital pre-distortion power amplifier.ADS simulation results show that the receiving channel has a high linearity,small distortion characteristics,power of OIP3 reaches 38.6 dBm.Experimental results show that the receiving channel can improve the nonlinear effects of the power amplifier in OFDM system,ACPR reaches 60.0 dB,out of band rejection increases 16.0 dB,while the power efficiency reaches 27%. |
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| Keywords: | digital pre-distortion nonlinearity receiving channel |
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